CVE-2024-42152 (GCVE-0-2024-42152)

Vulnerability from cvelistv5 – Published: 2024-07-30 07:46 – Updated: 2026-05-11 20:27
VLAI
Title
nvmet: fix a possible leak when destroy a ctrl during qp establishment
Summary
In the Linux kernel, the following vulnerability has been resolved: nvmet: fix a possible leak when destroy a ctrl during qp establishment In nvmet_sq_destroy we capture sq->ctrl early and if it is non-NULL we know that a ctrl was allocated (in the admin connect request handler) and we need to release pending AERs, clear ctrl->sqs and sq->ctrl (for nvme-loop primarily), and drop the final reference on the ctrl. However, a small window is possible where nvmet_sq_destroy starts (as a result of the client giving up and disconnecting) concurrently with the nvme admin connect cmd (which may be in an early stage). But *before* kill_and_confirm of sq->ref (i.e. the admin connect managed to get an sq live reference). In this case, sq->ctrl was allocated however after it was captured in a local variable in nvmet_sq_destroy. This prevented the final reference drop on the ctrl. Solve this by re-capturing the sq->ctrl after all inflight request has completed, where for sure sq->ctrl reference is final, and move forward based on that. This issue was observed in an environment with many hosts connecting multiple ctrls simoutanuosly, creating a delay in allocating a ctrl leading up to this race window.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a , < 2f3c22b1d3d7e86712253244797a651998c141fa (git)
Affected: 0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a , < b4fed1443a6571d49c6ffe7d97af3bbe5ee6dff5 (git)
Affected: 0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a , < 940a71f08ef153ef807f751310b0648d1fa5d0da (git)
Affected: 0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a , < 5502c1f1d0d7472706cc1f201aecf1c935d302d1 (git)
Affected: 0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a , < 818004f2a380420c19872171be716174d4985e33 (git)
Affected: 0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a , < c758b77d4a0a0ed3a1292b3fd7a2aeccd1a169a4 (git)
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Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 5.10.222 , ≤ 5.10.* (semver)
Unaffected: 5.15.163 , ≤ 5.15.* (semver)
Unaffected: 6.1.98 , ≤ 6.1.* (semver)
Unaffected: 6.6.39 , ≤ 6.6.* (semver)
Unaffected: 6.9.9 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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\"dateUpdated\": \"2025-11-03T22:02:15.586Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-42152\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T16:15:21.603444Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:24.537Z\"}}], \"cna\": {\"title\": \"nvmet: fix a possible leak when destroy a ctrl during qp establishment\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a\", \"lessThan\": \"2f3c22b1d3d7e86712253244797a651998c141fa\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a\", \"lessThan\": \"b4fed1443a6571d49c6ffe7d97af3bbe5ee6dff5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a\", \"lessThan\": \"940a71f08ef153ef807f751310b0648d1fa5d0da\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a\", \"lessThan\": \"5502c1f1d0d7472706cc1f201aecf1c935d302d1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a\", \"lessThan\": \"818004f2a380420c19872171be716174d4985e33\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a\", \"lessThan\": \"c758b77d4a0a0ed3a1292b3fd7a2aeccd1a169a4\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/nvme/target/core.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.6\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.6\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.222\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.163\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.98\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.39\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.9\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/nvme/target/core.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2f3c22b1d3d7e86712253244797a651998c141fa\"}, {\"url\": \"https://git.kernel.org/stable/c/b4fed1443a6571d49c6ffe7d97af3bbe5ee6dff5\"}, {\"url\": \"https://git.kernel.org/stable/c/940a71f08ef153ef807f751310b0648d1fa5d0da\"}, {\"url\": \"https://git.kernel.org/stable/c/5502c1f1d0d7472706cc1f201aecf1c935d302d1\"}, {\"url\": \"https://git.kernel.org/stable/c/818004f2a380420c19872171be716174d4985e33\"}, {\"url\": \"https://git.kernel.org/stable/c/c758b77d4a0a0ed3a1292b3fd7a2aeccd1a169a4\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnvmet: fix a possible leak when destroy a ctrl during qp establishment\\n\\nIn nvmet_sq_destroy we capture sq-\u003ectrl early and if it is non-NULL we\\nknow that a ctrl was allocated (in the admin connect request handler)\\nand we need to release pending AERs, clear ctrl-\u003esqs and sq-\u003ectrl\\n(for nvme-loop primarily), and drop the final reference on the ctrl.\\n\\nHowever, a small window is possible where nvmet_sq_destroy starts (as\\na result of the client giving up and disconnecting) concurrently with\\nthe nvme admin connect cmd (which may be in an early stage). But *before*\\nkill_and_confirm of sq-\u003eref (i.e. the admin connect managed to get an sq\\nlive reference). In this case, sq-\u003ectrl was allocated however after it was\\ncaptured in a local variable in nvmet_sq_destroy.\\nThis prevented the final reference drop on the ctrl.\\n\\nSolve this by re-capturing the sq-\u003ectrl after all inflight request has\\ncompleted, where for sure sq-\u003ectrl reference is final, and move forward\\nbased on that.\\n\\nThis issue was observed in an environment with many hosts connecting\\nmultiple ctrls simoutanuosly, creating a delay in allocating a ctrl\\nleading up to this race window.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.222\", \"versionStartIncluding\": \"5.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.163\", \"versionStartIncluding\": \"5.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.98\", \"versionStartIncluding\": \"5.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.39\", \"versionStartIncluding\": \"5.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.9\", \"versionStartIncluding\": \"5.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"5.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-06-19T12:56:36.697Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-42152\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T22:02:15.586Z\", \"dateReserved\": \"2024-07-29T15:50:41.193Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-30T07:46:44.795Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.